Printing-press-delivery burner



Nov. 2 1926. 1,605,504

C. BRADLEY v PRINTING PRESS DELIVERY BURNER Filed Jan. 14, 1926 mvEHToR,Char/c6 Bradley,

1 mym Patented Nov. 2, i926.

UNETED STATES CHARLES BRADLEY, OE INDIANAPOLIS, INDIANA.

PRINTING-PRESS-DELIVERY BURNER.

Application filed January 14, 1926. Serial No. 81,160.

This invention relates to means including a burner for heating printedsheets of paper as they come from a printing press for the purpose ofenabling the fresh ink to be quickly absorbed in order that there willbe a minimum of delay in making second runs or in the delivery of thefinished job.

Other objects reside in the control of the burner in cooperation withthe press control, the mounting of the burner so as to heat the sheetsevenly as they pass over the burner without overheating the edges of thesheets, the selective operation of the burner, and the quickdetachability of the burner from the press, and the means herein described is to be particularly distinguished from press heating burnersheretofore employed in that the heating means included in this inventionis employed at the delivery end of the press as opposed to a cylinderburner.

The invention will now be described in reference to the acompanyingdrawing, in which- Fig. 1 is a side elevation of the forward or deliveryend of a printing press;

Fig. 2, a fragmentary top plan view the delivery mechanism of the press;

Fig. 3, an enlarged perspective view of the heating burner, and

Fig. 4:, a vertical section through the burner on the line H in Fig. 3.

Similar characters of reference indicate similar parts in the severalviews of the drawing.

The press here shown being of the automatic type, is but one of a numberto which this invention may be applied and is taken only as "one exampleof the adaptation of the invention. This press has an automaticthrow-\oif mechanism operative from the feed mechanism, the feed board 5being thereunder, and this throw-off mechanism communicates through theimpression throw-off rod 6 and the stop switch pawl 7 to the electricalcontrol switch 8, the mechanism here shown in Fig. 1 as being in theoli' position whereby the pawl 7 is pressing down upon the button of theswitch 8 to hold the switch open.

A. foot control of the press is also provided through the foot pedal 9,sliding vertically on the guide 10, the pedal 9 being adapted to bepressed downwardly and turned to engage under the dog 11 to hold thepress in an off position.

A rod 12 interconnects the pedal 9 and one end of the lever 13 which ispivotally carried on the press frame 1 1 to contact against the underside of the outer end of the lock bar 15 so as to raise the bar 15 todisengage it from the pin 16 upon pressing down the pedal 9. A spring 17is secured to the end of the bar 15 and attached below to the frame 1 1to normally position the bar 15 on the pin16 and at the same time bymeans of the impression throw-0E connection 18 and the rocker arm 19 toreturn the'throw-oif rod 6 and its pawl 7 to their upward positionsto'release the button of the switch 8 to permit operation of the press.

Having described the press control elements, the burner will now bedescribed, and reference is particularly made to Figs. 3 and 4t of thedrawing.

The burner is comprised of a tubular section 20 having a plurality ofholes 21 therethrough in a line along its uppermost side,

such that in operation, there is a series of upwardly directedjets offlaming gas. baffle or shield 22 is secured to the back side of thesection 20 substantially along its entire length so as to prevent theprinted sheets from being contacted by the flames, as they pass over theburner in case of a jam-up of the sheets, otherwise the flames actuallycontact the sheets in runs where the ink impression is fairly heavy. Theburner being closed on one end has a mixing valve 23 on the other endand a control valve 24 between the mixing valve 23 and the inlet chamber25. A small tube 16 conducts gas past the control valve 2% and mixingvalve 23 to a pilot jet which pilot jet is continuously lightedirrespective of the control valve 24. The inlet chamber 25 has thenipple 26 to receive a flexible tube as a means of conveying the gas tothe burner from any appropriate source. To the side of the burnersection 20 opposite that of the bafiie 22, are attached two mountingbrackets 27 and by these brackets the burner generally designated by thenumeral 28 is secured to the top side of the jogger board 29 near itsback edge, or the edge nearest the press cylinder 30, see Figs. 1 and 2,such that the top of the bafiie 22 is just in front of and substantiallyon the same line of the delivery bands 31, which bands carry the papersheets from the cylinder 30 to deliver the sheets between the guides 32and over the heated baffle 22 to drop onto the jogger board 29, thesheets receiving, during their passage over the baflle 22, sufiicientheat to cause the ink impression thereon to be quickly absorbed.

To the burner control valve 24 is attached an operating lever 33 whichlever is adapted to travel fore and aft of the press to turn on or turnofi the gas entering the burner 28, and a control rod 34 is pivotallyand detachably secured to the lever 33 to extend backwardly to the armof a bell crank 35 pivotally carried on the press frame 14, and theother arm of the bell crank 35 is slotted and passes across theimpression throw-ofl connection 18. A pin 36 passes through the slot inthe bell crank arm to be secured in the connection 13 and rocks the bellcrank 35 by vertical travel of the connection 18. The bell crank 35, Fig. 1, is here shown with the slotted member pulled up such that thevalve lever 33 is pulled to an off position and no gas is burning fromthe holes 21. When the press is to be operated, the throwoif mechanismtravels to pull the connection 18 downwardly whereby the bell crank 35is rocked downwardly to pull the control lever 33 to the on position topermit the burner to light from the pilot jet.

The burner 28 being secured to the jogger board 29 is removed with theboard 29 when the type or plates are to be changed, the tubing beingslipped off the nipple 26, and the rod 34 is unhooked from the lever 33by pulling out the cotter pin 39. The press may also be operated withoutthe burner 28 in operation by leaving the rod 34 unhooked from thevalve-lever 33, and a hook 37 is provided to carry the rod 3st, when sounhooked from the lever 33.

In addition to the above indicated func tions of the gas burner, theburner, by supplying heat at the point the printed sheets leave thepress mechanism, is a most effective means of destroying the staticcharge on the sheets. l Vhere the sheets retain the static charge theyadhere one to the other most tenaciously and cause the fresh ink to flowor spread to create what is termed offset by the upper sheet pressingdown on the fresh ink of the lower sheet in the pile of deliveredsheets, and the heat applied to the sheets as above described eliminatesall such troubles.

Having described my invention in one particular form, it is obvious thatvariations may enter in its application to various press forms withoutdeparting from the spirit of the invention, and I therefore do not wantto be limited to the precise structure herein shown and described, norany more than may be necessitated by the tollowing claims.

I claim:

1. In a printing press, the combination with delivery bands, a joggerboard, and a press trip mechanism, of a heater bin-nor secured to thejogger board immediately at the delivery ends of the bands, said burnerhaving a plurality of heat sources along its upper face and having a shild spaced therefrom, said burner being mounted on the jogger board topermit printed sheets to pass thereover in close proximity as deliveredfrom the bands to the jogger board, valve means of cutting the heat oiland on in the burner, and a detachable control between the said valvemeans and the press trip mechanism.

2. In a printing press, the combination with a detachable jogger boardremaining stationary during the press operation, and an impressionthrow-oft rod, of a burner se cured to the jogger board, a shut offvalve in the burner, and a connecting rod between said throw-cit rod andsaid valve, whereby said valve is closed when the press is stopped.

3. In a printing press, the combination with a detachable jogger boardwhich re mains stationary during the operation of the press and animpression throw-oil connection capable of being operated automaticallyand manually, of a burner carried on the jogger board, a valve in theburner. a valve operating lever, a connecting rod detachably secured byone end to said valve lever, and a crank cooperating between the otherend of the connecting rod and the said throw-ott connection to cause thevalve to be opened and closed as the press starts and stopsrespectively.

In testimony whereof I atiix my sigmature.

CHARLES lilZRiDlQlC

